The most commonly used authoring tools for creating interactivities include Harbinger's Elicitus and Articulate's Engage.
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Some tools like Harbinger's Raptivity come with readymade interaction models that can be customized easily without any programming.
On September 28, 1998, Liberty Media announced the formation of Liberty Interactive, a company which would take advantage of new technologies such as set-top boxes to develop interactive programming.
Over its history, Blast Theory’s work has explored interactivity and the social and political aspects of technology through a multitude of forms – using performance, installation, video, mobile and online technologies.
With the radical vision to explore interactivity as a media in its own right rather than as an interface to content, Antirom changed the face of interactive design.
His work on Interactivity and Virtual Community, published by MIT Press, JCMC, and Oxford University Press is widely cited in the Information, Computer-Mediated Communication, Internet and Communication Research literatures.
But soon Rene Daalder realized that in a place of non-linearity and interactivity such a movie-like project wasn't going to work.
Some tools allow the incorporation of interactivity including Flash animation, and front-end web technologies such as, HTML, CSS, and JavaScript.